Automatic stop mechanism for talking-machines.



TEA

F. MALOCSAY. AUTOMATIC STOP MECHANISM FOR TALKING MACHINES.

APPLICATION FILED DEC.3I| 19H- Patented Sept. 3, 1918.

3 SHEETS-SHEET I.

F. MALGCSAY. AUTOMATIC STOP MECHANISM FOR-TALKING MAMCHINES.

APPLICATION FILED nc.al. m4.

1,277,448. Patented Sept. 3,1918.

' a suzars-snzn 2.

Attorney; I

.F. M'ALOCS AY. AUTOMATIC STOP MECHANISM F03 TALKING MACHINES.

PatentedSept. 3,1918.

3 SflEETS-SHEET 3.

APPLICATION FILED DEC.31, l9l4.

118.88% 7 Inventor x aw.

UNITED STATES PATENT oFFIoE.

FRANK MALOCSAY, OF NEW YORK, N. Y., ASSIGNOR TO SONORA PHONOGRAPH CORPO- RATION, A CORPORATION OF NEW YORK.

AUTOMATIC STOP MECHANISM FOR. TALKING-MACHINES.

To all uihom it may concern:

Be it known that I, FRANK Manocsmr, a citizen of the United States, residing in the 'borough of the Bronx, city, county, and

the surface of the disk and form a grooveivh ich will give off a harsh 'sound the next time the record is used. The engagement of the stylus with the surface of the disk may also break the stylus point and render the same unsuitable for further use.

The object of my invention is to pro-.

vide means whereby the movement of the turn-table and record will be automatically arrested when the stylus or reproducer point reaches the end of the record groove.

Another object is to produce such a de .vice which will be simple in construction,

economical of.manufacture, positive in operation, easily manipulated, and unlikely to get out. of order.

These and further objects will more fully appear from the following specification and accompanying drawings considered to gether or separately.

My invention is illustrated in the accompanying drawings in which similar reifen ei'ice characters ,(lesignate corresponding 1 parts in all of the'ligures.

Figure 1 is a plan view of a disk talking .machine and cabinet with the cover removed, embodying my invention.

Fig. 2 is a front view of the same with a portion of the cabinet front removed.

Fig. 3 is a plan view of the operative parts of my improved device, the tone-arm being omitted; with the turn-table illustrated in broken lines; the parts being shown in position with the brake shoe re moved from engagement with the turntable.

Fig. 4 is a similar view showing the brake applied.

Specification of Letters Patent.

Application filed December 31, 1914. Serial No. 879,865.

Fig. 5 is a detail view of a portion of the mechanism.

Fig. ti is a section on the line 66 of Fig. 3; and

Fig. 7 is a detail sectional view of aportion of a record tablet.

In the drawings 1 designates a cabinet which carries the usual motor and sound amplifying device, and having its front panel provided with openings through which the sound may be emitted to the atmosphere. The cabinet is provided with a shell or partition 2 and cover (not shown)! The motor shaft 3 projects through the shelf or partition 2; upon said shaft 3 is mounted a turn-table 4, upon which is supported a record tablet 5 provided with a sinuous record groove. Rotatably mounted on the shelf or partition 2 is a tone-arm 6 of the ordinary type, on the outer end of which is the usual sound box carrying a diaphragm and a stylus or reproducer point of any suitable type.

Secured to the shelf or partition 2 is a bed plate 7, on which most of the operating parts of my invention are supported. The motor shaft 3 projects through the bed plate. livoted to the bed plate at '8 is a lever 9. This lever rests upon the plate and is provided with an opening 10 which surrounds the motor shaft and permits the lever to move in relation thereto. Mounted on the lever 9 is a star-wheel 11 and the star-wheel carries a disk 12 on its under surface. The disk 12 is provided with a peripheral cam 13. The star-wheel also carries a second cam 14 which may conveniently be made on the lower face of the cam 12. The free end of the lever is moved in one direction by a spring 15 and a stop 16 limits. the niovemei'it in that direction. The turn-table 4 carries on its under side a roller 17 which is brought into engagement with the stanwhee] 11 once in each revolution of tlie'turn-table, and rotates the starwheel one spoke or, in the embodiment shown, onefit'th of a revolution.

A tumbler 18 is pivoted to the bed plate at 19 and its free end .is held in engagenient with the cam 13 by means of a spring 20, and the said tumbler is provided with a finger 21near its free end.

A swinging arm 22 is'pivoted to the bed plate at 23,and extends toward the tumbler 18 with its free end in. proximity to the arm 22, it will be held in the ug-arm 22.

and against one of tlieeprojections 24-.

' against either of the.

movement of the foot 33, the tumbler will be finger 21. Projections 2424 are arranged so as to limit the movement of the swinging arm 22. Said swinging arm is provided. with a plug 25 of soft material such as felt, leather or rubber, which projects from the under side of the swinging arm; it is also provided with a pin 26 projecting from its under side. A lever 27 is pivoted to the shelf or partition 2 and projects under the swinging arm 22. A sprin 28 serves to move the lever 27 in one direction, and a pin 29 limits the movement in that direction. The lever 27 is provided with a notch 30 having inclined sides. The notch 30 is in line with the pin 26, so that when the lever is 'moved against the tension of its spring the notch will engage the pin and move the swinging arm 22 to its central positiou. A detent 31 is pivoted to the bed plate and one of its ends engages the lever 27, and its other end is engaged by the cam 14. so that at each revolution of the starwheel, the lever 27 will be moved against its spring, and the swinging arm 22 will be brought to its central position.

Rigidly secured to the movable part of the tonearm (i is an arm 32 provided with a curved foot 33. When the tone-arm is in position to allow the stylus or reproducer point to engage with the. record groove on the tablet, the foot 33 is in position under the swinging-arm 22, with the plug 25 resting on the foot, and producing frictional engagement of the'foot 33 and the. swing- As the foot is moved in coin cidence with the travel of the stylus across the face of the record, the swinging-arm 22 will be moved in the same direction until it is halted by one or the other of the projcctions 24-, but at each revolution of the starwheel the notch 30 will engage. the. pin 26 and bring the swinging-arm 22 to its central position. When the notch is removed from engegenient with lhe pin the arm 2; will again move away from its central position, This operation will be. repeated as long as the turn-table is rotated with the stylus in engagement with the record groove.

When the foot 33 is under the swinging san'ie plane as the bigger 21. At each revolution of the. star-wheel the cam 13 will engage the tumbler 18, and if the swii'iging arm be held projections 24 by the.

moved. If, however, the foot be at rest, the swinging arm will be in its central position when the cam 13 engages the tumbler l8, and the "tiger 21 will engage t 1e end of the swinging nrm, thereby preventing movement of the tumbler. \Vhen this occurspthe ram 13 on engaging the tumbler will ihove the lever 9 away from the tumbler against the tension of the spring 15. i

The swinging arm 22 is loosely carried on its pivot 23, so that when the foot all is withdrawn from beneath it the free end ol the arm will fall below the plane of the finger 21, so that the turntable star wheel 11 and cam 13 may be rotated and the tumbler 18 oscillated without moving the lever f).

livoted to the shelf or partition 2 brake lever 34 provided with on handle and with a brake shoe 35, adapted to be held in engagement with the periphery oiitbe turn-table. A spring 36 normally holds the brake shoe in engagement with the turn-table.

A look lever 37 is pivoted to the shell" or partition 2 at 38. One end of the lock lever engages the free end of the lever 9, and its other end is adapted to engage .tbe brake lever 34- and hold the brake shoe away from the turn-table. A spring 39 holds the end of the lock lever in engagement with the lever 9.

The record disleor tablet 5 is provided with the usual helical record groove 40, and in addition has a circular groove 4-1 at the end of the record groove. This groove 41 may be impressed in the face of the disk during nninufacture or it may be made with (be recording stylus after the record groove. is finished. I

The record groove being helical fL'U-llH the slylus across the fare of the disk, and in so doing moves the fool. .lI-l under the arm 22. "hen the stylus reaches the circular groove 41 the troding |nove|n( u|t ceases, the loot is brought to rest, and the swinging arm is swung to its central position bythe engagw mcnl. ot the notch 30 with the pin "3b, so as to be engaged by the linger 21 when the tlnnbler 18 is moved.

l prefer to use two circular grooves 4l inipressed in the disk, one on the inside and one on (he oulside oi the space to be. occupied by the record groove, for the reason that in some ases the record groove'begins at the inside and in others it begins at the. outside. and where the circular groove is formed during the manufacture of the. dish. they ran be made alike, and will answer for either style of record groove.

It will be understood that only one (ircnlar groove, at the end of the record groove is necessary.

It will be lunther imderstood that my in venlion unrv be carried. out without the use of the circular groove for the reason that without: such a. groove when the stylus reaches the end of the record groove, it Alli run out of the groove onto the surface of the disk and the feed of the foot will be stopped.

The operation is as follows: I When the record is placed on the I'urn table and the motor started, the tone-arm is swung over the record and the foot IlZ-i is bmught into position under the swing-in is a operating J ii ll l

25 arrested, and the foot 33 80 will center the 35 gagen'ient with the 65 the turn -table,

arm 22 and raises it to the same plane as that of-the finger 21; the sound box is now lowered until the stylus rests in the record groove,- the rotation of the turn-table will feed the stylus across the record, and the star-wheel 1e lever 27 and the swinging-arm to its pivot and the finger 21 Will not engage the end of the arm 22.

Vl'zhen the stylus reaches the end of the record groove it will enter the circular groove, the feed of the stylus will then be will come to a standstill, and will no longer influence the swinging-arm 22 except to hold it up in the same plane as that of the finger 21. the cam 14 moves the lever 27 the notch 30 swinging-arm, and as it is no longer under the influence of the foot, it will remain in that position, and when the cam 13 engages the tumbler 18 it, the tumbler, cannot be moved on account of its enswinging-arm, and the cam, and with it the lever 9 will be moved a way from the tumbler. The end of the lever 9 will engage the lock-lever 37, and move it away from its engagement with the brake-lever, and the spring 36 will apply the brake-shoe and stop the rotation of the turn-table. The parts will now be in the po sition shown in Fig. 4 and locked in that position by the. engagement of the arm 22,

the linger 21 and the cam 13.

When it is desired to start the turntable,

the bralie-shoe is released from its engage turntable, which will then star-wheel will ment with the be rotated by the motor, the

b-omove the cam 13 from engagement with the tumbler 18, the spring 15 willinove the levcr 9 against the stop 16, and the lever 37 will be moved by the spring 39 to en age the brake-lever and hold the shoe away mm which will be permitted to rotate as before.

\Vhen the tone-arm is swung clear of the record, the foot is withdrawn from below the arm 22, the latter will, drop out of the path of the tumbler, and the turn-table may affecting the brake.

In accordance with the provisions of the patent statute, I have described the princi- 5 ple of my invention togetherwith the appatumbler to move the star-wheel ratios which I now consider to represent the est embodiment. thereof, but I desire to have it understood that the apparatus shown is merely illustrative, and that the invention can be carried out in other ways without departing from the spirit of my invention.

having now described my invention what I claim as new and desire to secure 'by Let lters Patent of the United States, is a fol ows:

1. In atalking machine, the combination with a turn-table, a brake the turn-tayble, out of contact with the turntable, a record carried by the and having a helical record groove, an arm, a stylus, connections between the arm and stylus whereby the movement of the stylus by its engagement with the groove will move the arm in one direction, of means operated by the movement of the turn-table to move the arm in the other direction, and connections between the arm and brake whereby the brake is unlocked when the connections engage the arm.

2. In a talking machine, the combination with a turn-table, a brake, means for a pplying the brake to the turntable, means for locking the brake out of contact with the turntable, a record carried by the turn-table, and having a helical record groove, an arm, a stylus, connections between the arm and stylus whereby the movement of the stylus the arm in one direction, of means operated by the movement of the turn-table to more the arm in the other direction, and means operattal by the movement of he turn-table to engage the arm and unlock the brake at ter it has been moved by the last mentioned means.

3. In a talkin with a turn-table,

machine, the combination a brake, a record carried by the turn-table, said recordharing a. helical record groove, an arm, a stylus engaging the record groove, connections between the arm and stylus, whereby the movement of the stylus its engagement with the roove will move the arm in one direction Ey frictional engagement with the connectlon, of a lever engaging the brake lock, a star-wheel carried by the lever, means carried by the turn-table to rotate the starwheel, a lever for moving, the arm relatively to the connection, means carried by the starwheel for moving the last mentioned lover, a tumbler for engaging the arm, and means carried by the star-wheel for engaging the and its supporting lever away from the arm, and move the lock to release the brake.

4. In a talking machine, the combination with a turn-table, and means for rotating the same, a brake, means for applying the b e, means for locking the brake, a

-ocord ca rn-led b the tum-table; and he'vmg a helical record groove, 0, at his en ing the groove, :1 member-mm in one reetion'by the tofthestyluswith' the record groove when the record is rotating,-n pivoted arm moved in one direction by frictional engagement with the member, of a cam operated by the turn-table, a lever carryinmthe cam, said lever engaging the braking means, and connections between the cam and arm whereb the latter will be moved in the opposite irection whereby the mun carrying lever. will be moved to engage lhe look and release the brake.

' 'In a talkin machine, the eombimtion with o tnrn-tab e, and means for rotating the some, it broke, means for a plying the brake, moon's for locking the bral re, a record rm'ried by the tutu-table, and havin a; helical mmrd groove, l1 stylus engaging the w om, a member moved in one direction by the cngmgement of the stylus with the record groove. when the reeon l is rotating, n pivoted arm mm'oil in one direction by frictional ongngwnent with the member, of a cam opera m! by the tum-table, a lever carrying the ham. Hill! lever engaging the braking means, nml no lever between the min and arm whereby the latter will be moved in the opimsite direction whemby the emu carrying lever will he movie] lo engage tholoc-k and release ii'hh brake.

ii. in a talking nuwhine, the combination will: It inrn-tniile, and means for rotating (In some, :4 bi'nko, means for applying the 5 v, loans for looking l'ln: brake, a round curried h the torn-tabla and having a helizfi W w-ll groove, a stylus engaging the grown, z: member nmvml in one llii'mtion by 2 i-ngugennnat, of the stylus with the moon! siluniv when the ['(N'Hl'il is rotating, :1 ivnwi :u'lu umve l in one (linwt-ion by rioliunnl vugngonmnt with the mmniior, of a -..l opmz-itml by he turn-table, u, lever l|!{ the rum, saiil lover engaging the 1' rum-ms, and a plurality of lovers i n the 0am and arm. wlurreby the latll be unwed in the opposite dii'oction hereby him on: carrying lever will ll. mom-l1 to mighgu ,izlulock and release the brake.

in a talking: imwhine, llwomubinntion will! u him-table, nml means for rotating the ensue a lllulfli means for nuplying the :1, a means fuzmm;- the hm e, a. record s by ilm turn-table, am! having u heliv-1-=-n|-rl groove, a stylus engaging the no, a. llmlllliml moved in one iinectiou h: aim engagement of the stylus wlth tho vixen-(l grimvo when the recon! is rotating, a pivoigmi arm. sup-partial by anti movedon one. ilireotion 'hy frictional engagement w th iho. member, uf-a. (nun operated by the torntable a lever carrying the coin, said lever engaging. the braking means, and 0011;21:0-

with u turn-tub tions behveen the com and um whereb the letter will be moved in the opfosite ireotion whereby the cam carrying ever will be gland to engage the lock and release the 8. In n machine, the combination stylus with the record groove when the rec.

o rd is mtating, an arm moved in one directlon by frictional 1 ement with the memof means actua u by the rotation of the tum-table for moving the arm in the opposite direotion, and means whereby when the arm is in the last mentioned. posh tion, the brake may be unlocked.

9. In a talkini; nmchine, the combination e, and means for rotatin the some, a brake for arresting the rotation of the turn-table, :1 look for the broke a rocord tablethnving a helical record grmwo, carried by the turn-table, a stylus engaging the record glou ve, a, member mova ble in um:- ilirection by engagement of: the stylus with the record groove when the record rotating, an arm moved in one direct-ion is frictional engigemc'mt with the. member, of men-no nctlmml by the rotation of the LURE?- tnblo for moviu the arm in the opposite \limution, 11 tom ler in line with the arm when the some is in the last mentioned {innition, a lever, and means carried by the h vet to engage the tumbler with the. urn: moi move the level and unlock the lnoho.

10. 1n ntulking imwhino, the Plumbingtion with n tum-mine, and menus for rotni ing the same, a brake for arresting the in lutioi'i of the turn-table, a look for the brake n mun-d tablet, having a helivnl rene groove, carried by this turn-mills, engaging the record gl'tmro, :1 mom! able in one direction ]i yvn; ::g ::n stylus with the. rel-uni groove whim (ml is rotating, an arm nmveil in one din s; tionby frictional engagement with the mom box, of menus :wtmiloll by the F'Olflll-ltil: of lilMLl-lllfl'l-tlllll for moving the nun in the opposite divert-ion u fllunhhnin line with the arm when the some is in the last o ntionml pimitimn lever, on abutment our? rieil by the turn-table, o a't.'l1'-\\ll(f('fl carried by the lever an-l minted by the abutment, '1 com on the stair-w eel for mguging the tumbler with the urn. to move the lever and unlock the brake.

11. In a milking machine, the omnbhmtion with l turn-fable. means for rotating the some, and n broke for arresting rotation of the some a look for the brake, means for releasing the lock. 0, i-ecord'dislc carried by the turn-table,

said disk having-a helical record groove, a stylus for engagement with the groove, a support for the stylus, an element carried by the support, an arm co6perating with the element, of means whereby when the armis, in a predetermined position, the lock will be released, and. means whereby when the stylus is removed from the path of the record groove the arm will be removed from the path of the brake releasing means.

12. In a talking machine, the eon'ibination witlr a turn-talble, means for rotating the same, and abrake for arresting rotation of the same, a lock for the brake, means for releasing the look, a record disk carried by the turn-ta ble, said disk having a helical record groove, a stylus for engagement with the groove, :1 support for the stylus, an element carried by the support, anarm coop- 20 ereting with the element of means whereby when the arm is in a predetermined position, relatively to devices operated by the rotation of the turn-table, the lock will be released, and means whereby when the stylus is re- 26 moved from the path of the record groove the arm will be removed from the path of the brake releasing means.

This specification signed and witnessed this 15th day of December, 1914.

v FRANK MALOCSAY. Witnesses:

G. R. Pn'romm, Geo. W. Bsmmns. 

